Does i-chlor use a flow meter, needle valve, or venturi metering system to control chlorine flow rate?

No the i-chlor system uses the most accurate method of chlorine dosing through electro-chemical adjustment the elementary basis of chlorine production. The electronic dosage method allows a continuous, non-varying flow of chlorine to the process. This control method allows extremely accurate dosage application when compared to flow meter control, which vary under changing pressure (or vacuum), venturi flow rate, and solution temperature.

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